Chimney.



PATBNTED DEG. 29, 190s.l

G. WBBBR- CHIMNEY. APPLIUATION FILED MAY 8. 1903.

3 SHEETS-SHEET 1.

N0 MODEL.

'52 vez? Z077 Caf/"Z Zr No. 748,242. PATBNTBD DBG. 29,1903.

' c. WEBER.

GHIMNEY.

APPLIoATIoN FILED MAY 8, 1903.

N0 MODEL. 3 SHEETS-SHEET 2.

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.PZZQOFNQ MON. D C

'wz mms mans co, Wow-urac.. wAsnm PATBNTEDDEG. ,29, 1903.

C. WEBER.

GHIMNEY.

APPLIOATION FILED MAY s.. 190s.

3 SHEETS-SHEET 3.

N0 MODEL.

Patented December 29, 1903.

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l -CHIMNEY-Q;

SPECIFICATION To all whom t may concern;

Be it known that I, CARL WEBER, a citizen ofthe United States, residing atChicago, `in

`the county of Cook and State of Illinois,h`ave invented anew and useful Improvement` in Chimneys, of which the following is a specilication.

eral construct-ion of the chimney whereby it is provided. about its lower section with a cirf cumferential air-space open at its base tothe outer air and leading at its upper end into the`chimney`flue at the base of the upper sin? gle chimney-section; `and it also consists in the means I j concrete reinforced by structural metal beams 2O rFigure 1 shows my improved chimney by aV section; Fig.

employ for the structure, involving embedded in it. A l Referring tothe accompanying drawings,

view in side elevation. Fig. 2 is a vertical 3,' an enlarged, broken, and partly-sectional View, diagrammatic in its nature, of that portion of the chimney contained between the ends of the bracket 3 on Fig. l',

Fig. 4, a section taken at the line Lton Fig. l viewed in the direction of the arrow and en;-

`larged; Fig. 5, a section taken attbe line 5 f on Fig. l viewedin the direction of the arrow1 `and enlarged; Fig. 6,a broken enlarged view showing the base or foundation of the chimney in sectional elevation; and Fig. -7 a dial grammatic plan view ofthe chimney base or foundation, taken at the line 7 on Fig. 6 and g viewed in the directionof the arrow.

The primary feature of my improvement, whatever the detailed construction may be of the chimney, consists ina circumferential air-space B about the portion of a chimney its base to about one-third,

A extending from more or less, of its height, open near its lower end to the atmosphere and opening at or near its upper end into the flue portion of the upper section'of the chimney.' The provision` of such an air-space enables the circulation through it about the chimney, which-is subjected to the products of combustion in their hottest condition, of air to protect it against injury from the heat and to bel heated and discharged ina heated lower section of the I condition into the chimney-fine, with the ef fect of enhancing the draft through the latter, owing to the heated condition of the air and the whirling motion which its discharge 4into theflue imparts therein to the products of combustion. To construct a chimney provided with the aforesaid air-space, I pre fer to employ as the materials structural-metal beams embedded `in molded concrete, and the preferred details of the construction employing these materials are the' following: A foundation or base C is laid, composed of intersetting layers of horizontal metal T-beams ot at intervals, embedded in concrete Z9 and surmounted by a bed of concrete c, molded into desired form, such as that represented, with the beams in staggered relation from one layer to another. `Metal T-beams d, to form a circumferential series thereof for the outer wall A' of the lower section ofthe chimney, are embedded in the base C along their lower end portions, 4which are bent to extend obliqnely outward, as represented in Figs. 6 and 7, the better to anchor them, and between beams a, and from the embedded portions of these beams they extend vertically upward, preferably t0 varying heights. l, To form the inner wall A2 for producing the air-spaceB, metal T-beams d are embedded at their lower` ends in circumferential series within the circumference described bythe beams d in the concrete of the base C toextend vertically upward, preferably to varying heights. About each series of beams d and d' is molded concrete d2 to a convenient height in each molding operation, and `at intervals of, say, about three and onehalfl feet, moreor less, I `encircle the outer seriesof beams d with similar beams d3, reduced toannular form,with the ends of each preferably overlapping, as represented at in Fig. 3u These annular beams are applied successively as the concrete is built up by molding to extend to the different points at which the annular beams are to be placed, so that each in being placed finds bearing on the top of the unfinished portion of the wall below it. As the originally-placed beams cland d become nearly thus embedded, another vertical beam is applied to each, preferably in the lap-joint relation represented of beams d at x' in Fig. 3, and the IPO molding of both walls A' A2 proceeds to the desired height-say about thirty-seven feet, more or less-from which point the outer beams d employed are bent inward to an angle, as shown at lvin Fig. 3, to delect them inwardly and bring the upper ends of the bent sections into coincidence with the planes of the vertical beams d of the lower doublewalled portion of the structure. From this point the outer beams extend vertically upward, as beams 112, and have concrete molded about them to embed them, as already described, with annular beams d8 placed at intervals and more beams d12 added until the upper single walled portion of the chimney attains the desired height-say to about ninety feet, more or lesswith an internal diameter of, say, about four to five feet, more or less. Where the beams d are deflected to the angle as at n, an oblique ledge D is molded, and at the ledge the air-space B, which communicates through openings e near its base with the outer air,communicates through a circumferential series of inclined tubular openingsfwith the interior of the upper single-walled section of the chimney at the base thereof.

An opening gis shown near the base of the chimney for connecting with it the smokefine of a furnace, and below the plane of the opening g another Opening is formed through which to clean the line, closed by a door h, and at the base of which is provided a stone slab 'L' in the chimney-flue.

What I claim as new, and desire to secure by Letters Patent, is-

l. Achimney, havingits lower section composed of double walls forming an interposed circumferential airspace open to the atmosphere and its upper section composed of a single wall with said air-space opening into the chimney -flue near the top of said lower section.

2. A chimney, having its lower section composed of double walls forming an interposed circumferential air-space open to the atmosphere and its upper section composed of a single wall with a ledge at the junction of said sections and a circumferential series of tubular openings in said ledge through which said air -space communicates with the chimney- Aflue near the base of said upper section.

3. A chimney comprising, in combination with a base, a flue-forming wall structure rising from said base and composed of upright lap-jointed metal beams encircled at intervals by annular metal beams with their ends overlapping each other, and concrete in which said beams are embedded.

4. A chimney comprising, in combination, a base formed of layers of horizontal metal beams embedded in concrete and a fine-forming wall structure rising from said base and composed of upright metal beams having sectionsA of the lower members thereof extended, for anchoring, obliquely into and embedded in said base between the beams therein, annular metal beams encircling said upright beams at intervals and concrete embedding said upright and annular beams.

5. A chimney comprising, in combination with a base, the lower section having double walls forming an interposed airspace open to the atmosphere and composed, as to the outer wall, of metal beams anchored in and rising from said base with annular metal beams encircling them at intervals and concrete embedding said beams, and as to the inner wall, of metal beams anchored in and rising from said base with concrete embedding them, and the upper section formed of a single wall composed of extensions of the upright beams of said outer wall with annular metal beams encircling them at intervals and concrete embedding said extensions and the beams encircling them, and openings leading from the upper portion of said air-space into the chimney-lue near the base of said upper section.

6. A chimney comprising, in combination, a base formed of horizontal layers of metal beams embedded in concrete and a line-forming wall structure having a double walled lower section forming an interposed air-space open to the atmosphere and composed, as to the outer wall, of metal beams anchored in and rising from said base with annular metal beams encircling them at intervals and. concrete embedding said beams, and as to the inner wall of metal beams anchored in and rising from said base with concrete embedding them, and a narrower singlewalled upper section communicating from near its base with said air-space and composed of inwardly-deflected extensions of the upright beams of said outer wall with annular metal beams encircling them at intervals and concrete embedding said extensions and the beams encircling them.

CARL WEBER. In presence of W. B. DAvIEs, WALTER N. WINBERG.

IOO 

